Window regulator mechanism



June 13, 1939.

B. s. FLORADAY WINDOW REGULATOR MECHANISM Original Filed May 10, 1957Buffan J. Harm/0y ill Patented June 13, 1939 WINDOW REGULATOR MECHANISMBurton S. Floraday, Toledo, Ohio,

mesne assignments, to Detroit Harvester pany, Detroit, Mich.,

gall

Application May 10,

assignor, by

Coma corporation of Michi- 1937, Serial No. 141,644

Renewed November 28, 1938 Claims.

This invention relates to window regulators for vehicles such, for examp1e,as used in raising and lowering the windows of automobiles and isconcerned with a regulator of the type shown and described in the applolson, Serial No. 132,7 regulator.

ication of Stanley W. Nich- 38, entitled Vehicle window in its travel.

Another object is to simplify the regulator mechanism of the above type,particularly with reference to the mounting of the crank arm in such amanner that a sturdier and less expensive structure is provided.

A further object i noise incident to a s to eliminate the clickingregulator of this structure at the time when the crank arm and link arebrought into contact raising and lowering with each other during themovements.

For purposes of illustration, an embodiment of the invention is shown ondrawing in which the accompanying Figure 1 is a fragmentary elevation ofa regulator operatively connected to the window glass, some of the partsbeing broken away for purposes of clarity;

Fig. 2 is a vertical tially on the line 2-2 sectional elevationsubstanof Fig. 1;

Fig. 3 is a view similar to Fig. 1, showing the position of the partssubstantially at the moment when the link is freed from engagement withits retainer or cam track;

Figs. 4, 5 and ing the relative link in various 6 are diagrammatic viewsshowpositions of the crank arm and positions of adjustment, Fig. 4showing the parts when the window is in raised position, Fig. 5 in anintermediate position similar to Fig. 3, and Fig. 6 in the loweredposition of the window.

The illustrated embodiment of the invention comprises a window regulatorhaving a triangularly shaped mounting plate II] which is suitablysecured as by bolts and nuts H to a lock board with an inward extensiongages the stud l3.

inwardly into an opening an arcuate series of gear which extendstransversely Pivotally mounted on the I3 is a crank arm l4 formed l5which pivotally en- The extension l5 projects l6 which is formed withteeth l'l, forming an internal gear, the teeth of which do not form acomplete circle because of the finger extension l5.

Actuating the crank arm I4 is a pinion l8 which meshes with the teeth llof the internal gear and the pinion l8 is operatively connected to ashaft 19 through a clutch 20, the usual crank handle (not shown)engaging the shaft I9. Detailed description of the clutch 20 is notconsidered necessary since clutches of this character are old andwell-known in the art. Suffice it to say that the clutch 20 enables thehandle shaft I!) to be turned in either direction to raise or lower thewindow but retrograde movement of the pinion I9 is prevented, therebyretaining the window in its adjusted position.

Pivotally connected to one end of the crank arm I4 is a link 2|, theopposite end of the link having a stud or roller 22, carrying a washerwhich is urged outwardly by a coil spring 23. The roller 22 fits into ahorizontally elongate slot or guideway 24, one end of which is enlargedat 25 to enable insertion of the roller. The slot or guideway 24 isformed in a retainer 26 which is fixed to and depends from a channelmember 21 which is rigidly secured to the lower edge of the window glass28.

The link 2| is provided with a laterally projecting pin 29 and when thelink is moved into abutment with the crank arm Hi, the pin 29 is adaptedto be disposed beneath an arcuately shaped flange 30 of a plate 3| whichis fixed to the mounting plate I0. In this manner, thelink f 2| andcrank arm M are maintained at a constant angle with respect to eachother during a portion of the path of movement of the crank arm.Projecting in opposite directions from the crank arm M are ears 32 whichare engaged by the link 2| when the link and arm are moved intoengagement. In order to silence the click occasioned by the contact ofthese parts, a sleeve 33, of rubber or other suitable material, fitsover the link and abuts against the ears 32.

Assuming the window glass 28 is in its uppermost or closed position, theparts assume the position shown in Figures 1 and 4. Upon turning thecrank handle in a clockwise direction, to impart similar rotation to thepinion I8, the crank arm I4 is swung also in a clockwise direction, thelink 2| being retained in its abutting relation to the crank arm byengagement of the pin 29 with the underside of the curved flange track30. The window glass 28 is thus lowered and during this movement, thestud or roller 22 moves to the right of the figures in the slot orguideway 24. An important feature of this invention resides in soarranging the slot or guideway 24 that when the parts are in theposition indicated in Figs. 3 and 5, the roller mobiles and othervehicles and it is found that if the roller 22 abuts against a stop atthis point, the window glass can be actuated at a substantially uniformrate of speed. It willbe apparent that upon continued turning of thecrank handle, the arm [4 and link 2| will tend to straighten outsubstantially to the position indicated in Fig. 6 in which the window isopen or in its lowered position. It will be apparent that upon turningof the crank handle or pinion I8 in the opposite direction, the abovedescribed operation is reversed, the link 2| first operating as a linkuntil it is brought into abutting relation with the .crank arm 14,whereupon these parts act together as a bell crank lever.

It is to be understood that numerous changes in details of construction,arrangement and operation may be effected without departing from thespirit of the invention especially as defined in the appended claims.

What I claim is: v

1. A vehicle window regulator comprising a crank arm, an internal gearin' said crank arm,

a part of said arm projecting into the approximate center of the spaceformed by said internal gear, a pivotal mounting for said arm engagingsaid arm part, a manually operable pinion engaging said internal gear, alink connecting the end of said crank arm to the window, and means tocause said arm and link to act as a bell crank lever during a portion ofthe path of movement of the arm.

2. A vehicle window regulator comprising a crank arm, an internal gearin said crank arm, a part of said arm projecting into the space formedby said internal gear, a pivotal mounting for said arm engaging said armpart, a manually operable pinion engagingsaid internal gear, a linkconnecting the end of said crank arm to the window, means to cause saidarm and link to act as a bell crank lever during a portion of the pathof movement of the arm, and means associated with the window forlimiting the relative movement in one direction between the link and armduring another portion of the path of movement of the arm for eifectingmovement of the window at a uniform rate of speed.

3. A vehicle window regulator comprising a crank arm, an internal gearin said crank arm, a part of said arm projecting into the space formedby said internal gear, a pivotal mounting for said arm engaging said armpart, a manually operable pinion engaging said internal gear, a linkconnecting the end of said crank arm to the Window, abutment means onsaid arm against which said link bears for a portion of the movementofsaid arm, a rubber sleeve on said link for silencing the contactbetween said arm and link, means to cause said arm and link of the pathof movement of the arm, and means associated with the Window forlimiting the relative movement in one direction between the link and armduring another portion of the path of movement of the arm for effectingmovement of the window at a uniform rate of speed. I

4. A vehicle window regulator comprisinga crank arm, a link connected tosaid crank arm, a retainer carried by the window having a horizontallyelongate guideway, a stud onthe free end of, said link slidable in saidguideway, a pin on said link, a'stationary flanged track for receivingsaid pin to hold said link against movement relative to said arm therebyto cause .the arm and link to act as a bell crank until said stud isapproximately in horizontal alignment with the axis of said arm, andmeans for actuating said arm, the length of saidguideway being so chosenthat said stud abuts against an end thereof substantially prior to thepin entering or upon the pin leaving said track.

5. A vehicle window regulator comprising a crank arm, an internal gearin said arm, a part of said arm projecting into the space formed by saidinternal gear, a pivotal mounting for said arm engaging said arm part, amanually operable pinion engaging said internal gear, a link connectingthe end of the crank arm to the window, and means forming part of theregulator adapted to interengage during a portion of the arm travel forholding said link and arm against relative movement thereby to cause thelink and arm to act as a bell crank lever.

BURTON s. FLORADAY.

to act as a bell crank lever during a portion

